The Menlo Park Police Department announced Wednesday that it is seeking a specific witness who may have watched a grisly fatal drunken driving accident last month that claimed the lives of a Menlo Park couple out walking their dog.

Menlo Park Traffic Sgt. Sharon Kaufman is seeking the cooperation of a white male that was driving a white Ford Explorer on Oct. 24 around 6:50 p.m. near the intersection of the crash on Chilco Street. It is believed that this individual may have witnessed the entire event, according to Kaufman.

Marjorie Reitzell, 54, of Redwood City, has been arrested in connection with the accident.

San Mateo County prosecutors said that after a day of heavy drinking, Reitzell veered her car onto a paved shoulder of the road, where her vehicle plowed into Kamal Singh, 45, and Balbir Singh, 50, who were out walking their Chihuahua. The couple leaves behind three teenage children.

Prosecutors say Reitzell then ran her vehicle into a car occupied by four teenagers, causing them minor injuries, before striking a tree.

She has been charged with two counts of gross vehicular manslaughter and two felony counts of driving while under the influence causing injury, according to the San Mateo County District Attorney’s Office. Reitzell will be in court Thursday to enter a plea.

In the meantime, she is being held on the San Mateo County Jail on $2 million bail.

Anyone who might have witnessed this incident is asked to contact Sgt. Kaufman with the Menlo Park Police Department at (650) 330-6343.